
Medical Providers
The highly skilled doctors and nurses at Mainline Health Systems provide compassionate care in eight well-equipped offices in Dermott, Eudora, Portland, Monticello, Rison, Star City, Warren and Wilmot, Arkansas as well as ten school based clinics located within the Dermott, Drew Central, Hamburg, Lakeside and Star City School districts.
Mainline Health’s medical providers offer top-notch health care to all of our patients, providing medical services including family practice, pediatrics, and diabetes health education.
Dr. Don Ball graduated with his medical degree from the University of Arkansas College of Medical Sciences (UAMS) in 1984. He continued his education at the University of Oklahoma Tulsa Medical College, where he completed a preliminary surgery internship. Dr. Ball joined the Mainline team in 2011.









Myra Flemister, APRN attended the University of Central Arkansas where she received her Bachelor of Science in Nursing. She then studied at the University of Arkansas for Medical Sciences where she obtained her Masters of Nursing Science degree. As an RN, Myra worked for the VA hospital in Little Rock, AR on the Medical-Surgical unit.
Myra joined the Mainline team in July of 2017.
Dustin Strickland, APRN graduated with his Bachelor of Science in Nursing from the University of Louisiana at Monroe. He is an experienced ER and dialysis nurse who decided to obtain his Masters of Nursing Science degree from Northwestern State University.
Dustin joined the Mainline team in July of 2017.
Amy White, APRN attended the University of Arkansas at Monticello and received her BSN. She was an RN for 8 years and then received her Master of Science in Nursing from the University of Cincinnati. Amy is married to Stan and resides in Monticello along with their three boys; Trystan, Jonah and Abram. Amy joined the Mainline team in 2018.



Kendal Noble, APRN graduated with her Bachelor of Science in Nursing in 2013 from the University of Arkansas at Monticello. Kendal's RN experience includes a variety of settings and specialties including experience at the University of Arkansas for Medical Sciences, Ashley County Medical Center, and Jefferson Regional Medical Center. Kendal has experience in step down intensive care, medical surgical care, and has spent majority of her RN experience in intensive care. Kendal completed her Master of Science in Nursing with a specialty in Family Practice with hopes of working in her community in 2018. Kendal resides in Star City with her husband and daughter. Kendal joined the Mainline team in 2018.
Clark Robert, APRN attended the University of Arkansas at Monticello where he received a Bachelor of Science in Nursing. During his time as an RN, he worked medical surgical floor, intensive care unit and emergency department. He received his Master of Science in Nursing from the University of Cincinnati.
Kerry Pennington, MD graduated from the University of Arkansas for Medical Sciences. He attended residency at John Peter Smith Hospital. Dr. Pennington strives to deliver the best care to every patient that he sees. He hopes that each patient leaves feeling like they have been listened to, understood and have been treated compassionately and appropriately. In his spare time, Dr. Pennington enjoys spending time with family and reading. He joined the Mainline team in December of 2019.
Joe Wharton, MD graduated from the University of Arkansas for Medical Sciences. He is Board Certified in Family Practice. Dr. Wharton joined the Mainline team in December of 2019.
Tammy Green, APRN graduated from the University of Central Arkansas. Tammy strives to treat her patients as she would expect her family to be treated. She is married to her high school sweetheart and has two children. When Tammy isn't taking care of patients, she enjoys camping, kayaking and reading. Tammy joined the Mainline team in December of 2019.
Heath Reep, APRN graduated from the University of Arkansas for Medical Sciences College of Nursing in 2002. His practice philosophy is best summed up by Luke 6:31: "And as ye would that men should do to you, do ye also to them likewise." In his spare time, Heath enjoys hunting, fishing and watching his kids play sports. Heath joined the Mainline team in December of 2019.
Karen Richardson, APRN graduated from University of Arkansas for Medical Sciences. She believes in providing comprehensive healthcare to individuals across their lifetime, assisting patients with knowledge to enhance self care and supporting patients during difficult times with compassionate understanding and resources to improve the quality of health. In her spare time, Karen enjoys water sports, family travels, yard work, snow skiing, volunteering in her community and country western dancing. Karen joined the Mainline team in December of 2019.

Financial Assistance
Health services for everyone, at a range of payment plans that you can afford.


Patient-Centered Medical Home
Mainline Health puts YOU at the center of your health care!